Properties

Label 2-7728-1.1-c1-0-48
Degree $2$
Conductor $7728$
Sign $1$
Analytic cond. $61.7083$
Root an. cond. $7.85546$
Motivic weight $1$
Arithmetic yes
Rational no
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 3-s + 1.20·5-s + 7-s + 9-s − 2.02·11-s − 3.90·13-s + 1.20·15-s + 4.70·17-s + 4.02·19-s + 21-s + 23-s − 3.55·25-s + 27-s + 5.10·29-s + 5.10·31-s − 2.02·33-s + 1.20·35-s − 2.70·37-s − 3.90·39-s + 1.61·41-s + 6.55·43-s + 1.20·45-s − 7.13·47-s + 49-s + 4.70·51-s − 7.69·53-s − 2.43·55-s + ⋯
L(s)  = 1  + 0.577·3-s + 0.538·5-s + 0.377·7-s + 0.333·9-s − 0.610·11-s − 1.08·13-s + 0.310·15-s + 1.14·17-s + 0.923·19-s + 0.218·21-s + 0.208·23-s − 0.710·25-s + 0.192·27-s + 0.948·29-s + 0.917·31-s − 0.352·33-s + 0.203·35-s − 0.444·37-s − 0.625·39-s + 0.252·41-s + 0.998·43-s + 0.179·45-s − 1.04·47-s + 0.142·49-s + 0.658·51-s − 1.05·53-s − 0.328·55-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 7728 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 7728 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(7728\)    =    \(2^{4} \cdot 3 \cdot 7 \cdot 23\)
Sign: $1$
Analytic conductor: \(61.7083\)
Root analytic conductor: \(7.85546\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 7728,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(3.019410950\)
\(L(\frac12)\) \(\approx\) \(3.019410950\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
3 \( 1 - T \)
7 \( 1 - T \)
23 \( 1 - T \)
good5 \( 1 - 1.20T + 5T^{2} \)
11 \( 1 + 2.02T + 11T^{2} \)
13 \( 1 + 3.90T + 13T^{2} \)
17 \( 1 - 4.70T + 17T^{2} \)
19 \( 1 - 4.02T + 19T^{2} \)
29 \( 1 - 5.10T + 29T^{2} \)
31 \( 1 - 5.10T + 31T^{2} \)
37 \( 1 + 2.70T + 37T^{2} \)
41 \( 1 - 1.61T + 41T^{2} \)
43 \( 1 - 6.55T + 43T^{2} \)
47 \( 1 + 7.13T + 47T^{2} \)
53 \( 1 + 7.69T + 53T^{2} \)
59 \( 1 - 4.52T + 59T^{2} \)
61 \( 1 - 4.58T + 61T^{2} \)
67 \( 1 - 2.96T + 67T^{2} \)
71 \( 1 - 8.14T + 71T^{2} \)
73 \( 1 - 5.34T + 73T^{2} \)
79 \( 1 - 8.46T + 79T^{2} \)
83 \( 1 + 6.51T + 83T^{2} \)
89 \( 1 + 2.31T + 89T^{2} \)
97 \( 1 - 4.46T + 97T^{2} \)
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   \(L(s) = \displaystyle\prod_p \ \prod_{j=1}^{2} (1 - \alpha_{j,p}\, p^{-s})^{-1}\)

Imaginary part of the first few zeros on the critical line

−7.979094752005551385575228260241, −7.30451243949009110607906528367, −6.57724017945826436525276501371, −5.59229493658107969354605786453, −5.13395240769666569685957476587, −4.38160871330332002086489765946, −3.31935208548567706870239558314, −2.69376069910928186931127747008, −1.90794700005418092173591374054, −0.856765981563292809968525562226, 0.856765981563292809968525562226, 1.90794700005418092173591374054, 2.69376069910928186931127747008, 3.31935208548567706870239558314, 4.38160871330332002086489765946, 5.13395240769666569685957476587, 5.59229493658107969354605786453, 6.57724017945826436525276501371, 7.30451243949009110607906528367, 7.979094752005551385575228260241

Graph of the $Z$-function along the critical line